CN207328422U - Line control brake system and vehicle - Google Patents
Line control brake system and vehicle Download PDFInfo
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- CN207328422U CN207328422U CN201721247771.6U CN201721247771U CN207328422U CN 207328422 U CN207328422 U CN 207328422U CN 201721247771 U CN201721247771 U CN 201721247771U CN 207328422 U CN207328422 U CN 207328422U
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Abstract
This disclosure relates to a kind of line control brake system and vehicle.The line control brake system includes pedal signal collector, hydraulic system, hydraulic control unit, two liquid braking devices, controller, middle motor, and described two liquid braking devices are used to brake two front-wheels, and middle motor is used to driving and braking two trailing wheels；Or, two liquid braking devices are used to brake two trailing wheels, middle motor is used to driving and braking two front-wheels, middle motor includes two motor bodies and two electromagnetic clutch, each electromagnetic clutch is used for the motor shaft for braking corresponding motor body, controller is used for the middle motor of pedal signal control collected according to pedal signal collector, and hydraulic control unit is used for the hydraulic coupling for controlling hydraulic system to be supplied to liquid braking device according to pedal signal.Through the above scheme, enabling provide a kind of mechanical connection less, it is simple for structure, it is small, it is easy to arrange on vehicle, and can effectively reduce the line control brake system of complete vehicle quality.
Description
Technical field
A kind of this disclosure relates to motor vehicle braking system, and in particular, to line control brake system.
Background technology
Line control brake system (abbreviation BBW) i.e. electrically controlled brake system, is divided into mechanical line control brake system (referred to as
) and two kinds of fluid pressure type line control brake system (abbreviation EHB) EMB.If EHB is called the BBW systems of " wet type ", then EMB is just
It is the BBW systems of " dry type ".Difference lies in EMB not to use brake fluid and hydraulic unit for both, and braking moment is completely by pacifying
Motor drive actuator on 4 wheels is realized, and EHB is the system between conventional hydraulic braking system and EMB
Dynamic system, is a transition system.
EHB systems are developed on the basis of traditional brake fluid system.Have with traditional brake fluid system
Institute is different, and EHB substitutes some mechanical element with electronic component, is an advanced electro-mechanical system.One synthesis of EHB
Pressure regulator and ABS modules, this synthetical restraint module in brake module substitution conventional brake can be produced and stored
Brake pressure, can individually be adjusted the braking moment of four wheels.EHB systems have conventional hydraulic braking system can not
The superiority of analogy, but EHB systems still use electrichydraulic control mode, are not pure brake-by-wire in a strict sense
System, but compared with EMB systems, EHB systems are more ripe in current techniques, thus before having splendid development in a short time
Scape.
Utility model content
The purpose of the disclosure is to provide a kind of line control brake system simple for structure, suitable for being arranged on vehicle.
To achieve these goals, the disclosure provides a kind of line control brake system, including pedal signal collector, hydraulic pressure system
System, hydraulic control unit, two liquid braking devices, controller, middle motor, described two liquid braking devices are used to brake two
Front-wheel, the middle motor are used to driving and braking two trailing wheels；Alternatively, described two liquid braking devices are used for after braking two
Wheel, the middle motor are used to driving and braking two front-wheels, and the middle motor includes two motor bodies and two electromagnetism
Clutch, each electromagnetic clutch are used for the motor shaft for braking corresponding motor body, and the controller is used to step on according to
The pedal signal that partitioned signal collector collects controls the middle motor, and the hydraulic control unit is used for according to the pedal
The signal control hydraulic system is supplied to the hydraulic coupling of the liquid braking device.
Alternatively, the pedal signal collector includes pedal displacement sensor and/or pedal force sensor.
Alternatively, the line control brake system further includes whole vehicle state collector, and the controller is used to step on according to
Described in the whole vehicle state signal control that the pedal signal and the whole vehicle state collector that partitioned signal collector collects collect
Middle motor.
Alternatively, the whole vehicle state collector includes longitudinal acceleration sensor, lateral acceleration sensor, yaw angle
One or more of velocity sensor, steering wheel angle sensor and wheel speed sensors.
Alternatively, the controller includes central controller and the first controller, the central controller respectively with it is described
Hydraulic control unit and the first controller are electrically connected, and first controller is used to control the middle motor, the center control
Device processed receives the pedal signal and receives whole vehicle state signal by In-vehicle networking.
Alternatively, the system comprises electronic pedal, the electronic pedal to include brake pedal, pedal simulator, pedal mould
Intend device controller and the pedal signal collector, the pedal signal collector are electrically connected with the pedal simulator controller
Connect, the pedal simulator controller is electrically connected with the central controller.
Alternatively, the pedal simulator controller is also electrically connected with the hydraulic control unit and the first controller respectively
Connect.
Alternatively, the electromagnetic clutch includes electromagnet, translational friction piece and rotary friction pad, and the electromagnet includes
Fixed core, dynamic iron core and the driving spring for acting on the dynamic iron core, the rotary friction pad is rotated with the motor shaft, described
Translational friction piece can move under the driving of the dynamic iron core.
Alternatively, the electromagnetic clutch further includes outer race and inside race, the inside race and the motor shaft spline
Connection, the rotary friction pad is arranged on the inside race, the electric machine casing of the outer race and the middle motor it is interior
Wall spline connects, and the translational friction piece is arranged on the outer race.
Through the above technical solutions, so that the disclosure be capable of providing it is a kind of mechanically connect it is few, it is simple for structure, it is small, easily
In being arranged on vehicle, and it can effectively reduce the line control brake system of complete vehicle quality.
The disclosure also provides a kind of vehicle, including line control brake system as described above.
Other feature and advantage of the disclosure will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Attached drawing is for providing further understanding of the disclosure, and a part for constitution instruction, with following tool
Body embodiment is used to explain the disclosure together, but does not form the limitation to the disclosure.In the accompanying drawings：
Fig. 1 is the principle schematic according to a kind of line control brake system of embodiment of the disclosure；
Fig. 2 is the sectional view of middle motor；
Fig. 3 is the partial enlarged view of Fig. 2.
Embodiment
The embodiment of the disclosure is described in detail below in conjunction with attached drawing.It should be appreciated that this place is retouched
The embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
According to one aspect of the disclosure, as shown in Figure 1, there is provided a kind of line control brake system, including electronic pedal 200,
Hydraulic system, 910, two liquid braking devices 410 of hydraulic control unit, controller, middle motor 420.
Electronic pedal 200 includes brake pedal 210, pedal simulator 220 and pedal signal collector 230.Pedal is simulated
Device 220 provides the pedal sense similar to Conventional braking systems (pedal reaction force and pedal travel) for driver, can be by
Brake operating is carried out according to the custom and experience of oneself.The manipulation that pedal signal collector 230 is used to monitor driver is intended to, can be with
Using pedal displacement sensor or pedal force sensor, can also the two use at the same time, to avoid single type sensor common-mode
The influence of failure, is conducive to fault diagnosis.
Two liquid braking devices 410 can be two front wheel brakes, or two rear wheel brakes.When two liquid
When pressure brake 410 is two front wheel brakes, middle motor 420 is used to driving and braking two trailing wheels 520；When two hydraulic pressure
When brake 410 is two rear wheel brakes, middle motor 420 is used to driving and braking two front-wheels 510.
As shown in Figures 2 and 3, middle motor 420 includes electric machine casing 421, two be arranged in electric machine casing 421
Motor body 422 and two electromagnetic clutch 423, two motor bodies 422 be respectively used to driving two wheels, each electromagnetism from
Clutch 423 is used for the motor shaft 4221 for braking corresponding motor body 422.
Pedal signal collector 230 is by the pedal signal collected (for example, pedal acceleration, pedal displacement, pedal force are big
It is small etc.) controller and hydraulic control unit 910 are transferred to, controller is supplied to electromagnetic clutch according to pedal signal control
423 size of current, so as to control the magnetic field intensity of electromagnetic clutch 423 so that electromagnetic clutch 423 produces corresponding holding
Power is to hold motor shaft 4221 tightly；Hydraulic control unit 910 controls hydraulic system to be supplied to liquid braking device according to the pedal signal
410 hydraulic coupling so that liquid braking device 410 produces corresponding brake force.
Alternatively, as shown in Figures 2 and 3, electromagnetic clutch 423 can include electromagnet, translational friction piece 4235, rotation
Friction plate 4236, outer race 4237 and inside race 4238.Wherein, electromagnet can include fixed core 4232,4233 and of dynamic iron core
Act on the driving spring 4234 of dynamic iron core 4233.Inside race 4238 is connected with motor shaft 4221 by spline slide, rotary friction
Pad 4236 is arranged on inside race 4238 so as to being rotated under the drive of motor shaft 4221.Outer race 4237 and electric machine casing
421 inner wall is connected by spline slide, and translational friction piece 4235 is arranged on outer race 4237 so as to along motor shaft 4221
Axial translation.Fixed core 4232 and dynamic iron core 4233 can be all formed as cyclic structure, and dynamic iron core 4233 is set in electricity
The outside of arbor 4221, fixed core 4232 are set in the outside of dynamic iron core 4233, so that the more compact structure of middle motor 420,
Axial dimension smaller.When electromagnet dead electricity, the magnetic attraction between fixed core 4232 and dynamic iron core 4233 disappears, dynamic iron core 4233
Move right under the action of driving spring 4234, and promote translational friction piece 4235 and rotary friction pad 4236 to engage, the two
Between frictional force make it that motor shaft 4221 is held tightly.The size of current of electromagnet is supplied to by control, can control and determine iron
Magnetic attraction between core 4232 and dynamic iron core 4233, so as to control the enclasping force of electromagnetic clutch 423.
Through the above technical solutions, so that the disclosure be capable of providing it is a kind of mechanically connect it is few, it is simple for structure, it is small, easily
In being arranged on vehicle, and it can effectively reduce the line control brake system of complete vehicle quality.
In the disclosure, vehicle can also be included in order to improve braking stationarity and security, the line control brake system
State acquisition device 800, controller are additionally operable to the middle electricity of whole vehicle state signal control collected according to whole vehicle state collector 800
Machine 420.That is, controller should receive the pedal signal that pedal signal collector 230 collects, vehicle shape is received again
The whole vehicle state signal that state collector 800 collects, it is each real-time required optimal that these comprehensive signals calculate each wheel
Brake force, reaches optimal braking effect.Specifically, controller can be by In-vehicle networking (for example, TTP/C networks, CAN nets
Network, Flex ray networks etc.) receive the signal of whole vehicle state collector 800.
Here, whole vehicle state collector 800 can include longitudinal acceleration sensor, lateral acceleration sensor, yaw
One or more of angular-rate sensor, steering wheel angle sensor and wheel speed sensors.Correspondingly, whole vehicle state signal can
With including in longitudinal acceleration signal, transverse acceleration signal, yaw rate signal, steering wheel angle signal and wheel speed signal
One of or more persons.
Specifically, hydraulic system can include be connected by fluid pressure line oil storage cup 920, electric hydraulic pump 930, unidirectionally
Valve 940, accumulator 950 etc..Hydraulic control unit 910 can include electronic control unit and multiple solenoid valves, and electronic control is single
Member is used to control electric hydraulic pump 930 and solenoid valve, so that hydraulic system exports corresponding hydraulic coupling to liquid braking device 410.
In the disclosure, controller can be one, or multiple.In order to improve braking response speed, controller
It can include 310 and first controller 320 of central controller, wherein, the first controller 320 is used to control middle motor 420,
Central controller 310 is electrically connected with the first controller 320 and hydraulic control unit 910 respectively.Central controller 310 receives pedal
Signal simultaneously receives whole vehicle state signal by In-vehicle networking, for determining driver intention or judging Full Vehicle Dynamics state,
And send control signal to the first controller 320 and hydraulic control unit 910.First controller 320 receives central controller
310 control signal, controls the motor body 422 of middle motor 420 to complete torque responsive, and controls the electricity of middle motor 420
Magnet clutch 423 produces corresponding enclasping force.Hydraulic control unit 910 receives the control signal of central controller 310, controls liquid
The hydraulic coupling that pressure system is exported to liquid braking device 410 so that liquid braking device 410 produces corresponding brake force.
Alternatively, electronic pedal 200 can also include the pedal simulator for the motor being used in control pedal simulator 220
Controller 240, pedal signal collector 230 are electrically connected with pedal simulator controller 240, pedal simulator controller 240 with
Central controller 310 is electrically connected, and the pedal signal that pedal signal collector 230 collects can be controlled by pedal simulator
Device 240 is transmitted to central controller 310.It should be noted that can also be by pedal signal collector 230 and central controller
310 are directly electrically connected, so that pedal signal is directly transferred to central controller 310.
Further, pedal simulator controller 240 can also respectively with the first controller 320 and hydraulic control unit
910 are electrically connected, so that pedal signal can be transmitted to the first controller 320 and hydraulic pressure control by pedal simulator controller 240
Unit 910 processed.In this way so that when central controller 310 breaks down, braking system can also complete basis
Braking function, improves braking safety.
Specifically, the line control brake system can also include being used for middle motor 420, central controller 310, first
The power supply 600 that controller 320, hydraulic control unit 910, electronic pedal 200 and whole vehicle state collector 800 are powered.Attached drawing
Mark 700 represents power interface.
A kind of course of work of the line control brake system of embodiment according to the disclosure is briefly described below in conjunction with Fig. 1.
After driver's brake pedal, pedal acceleration, displacement and pedal are detected by pedal signal collector
The brake command signals such as the size of power (that is, pedal signal), central controller receive brake command signal by In-vehicle networking, and
The signal of other sensors (that is, whole vehicle state collector) under comprehensive current vehicle transport condition calculates each wheel each
Optimum braking force required in real time, and send control signal to the first controller and hydraulic control unit.First controller according to
The motor body of motor completes torque responsive among the control signal control received, and controls the electromagnetic clutch of middle motor
Corresponding enclasping force is produced to hold motor shaft tightly.Hydraulic control unit controls hydraulic system to liquid according to the control signal received
The hydraulic coupling of brake output is pressed, so that liquid braking device produces corresponding brake force.
In the disclosure, used liquid braking device 410 can have any suitable structure, and the disclosure does not make this
Limitation.
According to another aspect of the present disclosure, there is provided a kind of vehicle, the vehicle use line control brake system as described above.
In conclusion the line control brake system of the disclosure has the following advantages：First, hydraulic brake line quantity is reduced, can
Complete vehicle quality is effectively reduced, it is simple for structure, it is small, it is easy to arrange；2nd, using being mechanically and electrically, signal transmits rapidly,
Braking response is fast, is quick on the draw；3rd, transmission efficiency, saves the energy；4th, electronic intelligence control function is powerful, can be by repairing
Change the software program in controller, configure relevant parameter to realize the electric control function of the complexity such as ABS, TCS, ESC, ACC, and
It is easy to and have the new-energy automobile of brake energy recovering system to be matched；5th, whole system can use modular construction,
Assembling is simple, easy to maintenance；6th, using electronic pedal, mechanically and hydraulically connecting for brake pedal and brake actuator is eliminated
Connect, on the one hand, when performing ABS when action, brake pedal does not have rebound vibration, improves braking comfort, on the other hand,
When vehicle collides, impact force will not be passed in driver's cabin by braking system, improves the passive safety of automobile.
The preferred embodiment of the disclosure is described in detail above in association with attached drawing, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection domain of the disclosure.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the disclosure to it is various can
The combination of energy no longer separately illustrates.
In addition, it can also be combined between a variety of embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought, it should equally be considered as disclosure disclosure of that.
Claims (10)
1. a kind of line control brake system, it is characterised in that including pedal signal collector (230), hydraulic system, hydraulic control list
First (910), two liquid braking devices (410), controller, middle motor (420),
Described two liquid braking devices (410) be used for brake two front-wheels (510), the middle motor (420) be used for drive and
Brake two trailing wheels (520)；Alternatively, described two liquid braking devices (410) are used to brake two trailing wheels (520), the centre
Motor (420) is used to driving and braking two front-wheels (510),
The middle motor (420) includes two motor bodies (422) and two electromagnetic clutch (423), each electromagnetic clutch
Device (423) is used for the motor shaft (4221) for braking corresponding motor body (422), and the controller is used to be believed according to the pedal
The pedal signal that number collector (230) collects controls the middle motor (420), and the hydraulic control unit (910) is used for
The hydraulic coupling of the liquid braking device (410) is supplied to according to the pedal signal control hydraulic system.
2. line control brake system according to claim 1, it is characterised in that the pedal signal collector (230) includes
Pedal displacement sensor and/or pedal force sensor.
3. line control brake system according to claim 1, it is characterised in that the line control brake system further includes vehicle shape
State collector (800), the controller are used for the pedal signal that is collected according to the pedal signal collector (230) and described
The whole vehicle state signal that whole vehicle state collector (800) collects controls the middle motor (420).
4. line control brake system according to claim 3, it is characterised in that the whole vehicle state collector (800) includes
Longitudinal acceleration sensor, lateral acceleration sensor, yaw-rate sensor, steering wheel angle sensor and wheel speed sensing
One or more of device.
5. line control brake system according to claim 3, it is characterised in that the controller includes central controller
(310) controlled respectively with the hydraulic control unit (910) and first with the first controller (320), the central controller (310)
Device (320) processed is electrically connected, and first controller (320) is used to control the middle motor (420), the central controller
(310) receive the pedal signal and whole vehicle state signal is received by In-vehicle networking.
6. line control brake system according to claim 5, it is characterised in that, should the system comprises electronic pedal (200)
Electronic pedal (200) includes brake pedal (210), pedal simulator (220), pedal simulator controller (240) and described steps on
Partitioned signal collector (230), the pedal signal collector (230) are electrically connected with the pedal simulator controller (240), institute
Pedal simulator controller (240) is stated to be electrically connected with the central controller (310).
7. line control brake system according to claim 6, it is characterised in that the pedal simulator controller (240) is also
It is electrically connected respectively with the hydraulic control unit (910) and the first controller (320).
8. line control brake system according to claim 1, it is characterised in that the electromagnetic clutch (423) includes electromagnetism
Iron, translational friction piece (4235) and rotary friction pad (4236), the electromagnet include fixed core (4232), dynamic iron core (4233)
With the driving spring (4234) for acting on the dynamic iron core (4233), the rotary friction pad (4236) is with the motor shaft
(4221) rotate, the translational friction piece (4235) can move under the driving of the dynamic iron core (4233).
9. line control brake system according to claim 8, it is characterised in that the electromagnetic clutch (423) further includes outer
Seat ring (4237) and inside race (4238), the inside race (4238) are connected with the motor shaft (4221) spline, the rotation
Friction plate (4236) is arranged on the inside race (4238), the electricity of the outer race (4237) and the middle motor (420)
The inner wall spline connection of casing body (421), the translational friction piece (4235) are arranged on the outer race (4237).
10. a kind of vehicle, it is characterised in that including the line control brake system according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721247771.6U CN207328422U (en) | 2017-09-26 | 2017-09-26 | Line control brake system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721247771.6U CN207328422U (en) | 2017-09-26 | 2017-09-26 | Line control brake system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207328422U true CN207328422U (en) | 2018-05-08 |
Family
ID=62370145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721247771.6U Active CN207328422U (en) | 2017-09-26 | 2017-09-26 | Line control brake system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207328422U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115416636A (en) * | 2022-09-06 | 2022-12-02 | 重庆长安汽车股份有限公司 | Driving and braking integrated system and electric vehicle |
| CN115416636B (en) * | 2022-09-06 | 2024-07-26 | 重庆长安汽车股份有限公司 | Integrated system for driving and braking and electric vehicle |
-
2017
- 2017-09-26 CN CN201721247771.6U patent/CN207328422U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115416636A (en) * | 2022-09-06 | 2022-12-02 | 重庆长安汽车股份有限公司 | Driving and braking integrated system and electric vehicle |
| CN115416636B (en) * | 2022-09-06 | 2024-07-26 | 重庆长安汽车股份有限公司 | Integrated system for driving and braking and electric vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220929 Address after: No. 3009, BYD Road, Pingshan District, Shenzhen, Guangdong 518118 Patentee after: BYD Co.,Ltd. Patentee after: SHANWEI BYD INDUSTRIAL CO.,LTD. Address before: 518118 BYD Road, Pingshan New District, Shenzhen, Guangdong 3009 Patentee before: BYD Co.,Ltd. |